ZF Marine Transmissions are renowned for their reliability and performance in the maritime industry. These transmissions, including the popular ZF 25A and ZF Hurth Marine models, play a vital role in various boat types. ZF Marine gearboxes ensure smooth power transfer from the engine to the propeller, contributing to a seamless and efficient boating experience. Whether for propulsion or maneuvering, ZF Marine transmissions are trusted by boat owners and operators worldwide for their durability and precision.
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1-2 weeks delivery time ZF 634319132 Output Shaft Seal with dimensions Ø50 × Ø70 × 10 mm is built from NBR or FKM elastomer for high resistance to oils, lubricants, and high-pressure fluids. Designed for up to 15 MPa (2175 psi) and –40°C to +200°C, this press-fit radial seal prevents leakage on output shafts in marine, automotive, and industrial equipment, ensuring long-lasting protection and minimal maintenance in extreme conditions.
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$ 46.19
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1-2 weeks delivery time ZF 634319135 Output Seal for ZF HSW 450A2 transmission, dimensions Ø120 × Ø150 × 15 mm, is built from reinforced high-performance elastomer and withstands up to 15 bar pressure and 6000 RPM. Operating between –40°C and +150°C, it provides superior sealing under high-speed, high-load marine conditions, preventing fluid loss, contamination, and minimizing wear for long-lasting drivetrain protection.
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$ 67.69
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1-2 weeks delivery time ZF 634402538 Sealing Ring (Ø38 × Ø44 × 4 mm) is an interlocking piston seal made of NBR elastomer, designed for ZF marine transmissions. Rated up to 150 bar and –40°C to +150°C, it offers high resistance to oils, fuels, and abrasion. The low-friction press-fit design ensures efficient sealing, smooth piston movement, and extended service life in high-speed, high-load environments.
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$ 53.90
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1-2 weeks delivery time ZF 634502009 Shaft Seal (Ø40 × Ø60 × 5 mm) is a high-performance elastomer seal for selector shafts in marine, automotive, and industrial systems. Withstands temperatures from –40°C to +180°C and pressures up to 30 MPa. Resistant to oils, lubricants, and hydraulic fluids. Offers long service life, wear resistance, and easy press-fit installation.
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$ 22.56
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1-2 weeks delivery time ZF 635374005 Bearing is a tapered roller bearing (Ø40 × Ø90 × 35.25 mm) with dynamic load rating of 128.6 kN and static load rating of 156.0 kN. Designed for heavy-duty applications, it operates up to 6000 RPM in oil and 4400 RPM in grease. Made from heat-treated chrome steel, it offers excellent wear resistance, low friction, and long service life in high-load, high-speed systems.
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$ 101.12
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1-2 weeks delivery time ZF 635501597 is a high-speed ball bearing engineered for the ZF25M marine gearbox. With dimensions Ø31.75 × Ø59.13 × 15.88 mm, dynamic load rating 39.3 kN, and speed capacity up to 8500 RPM (oil), it supports both axial and radial loads. Made from corrosion-resistant, case-hardened steel, it ensures reliable operation in saltwater environments and minimizes wear under high-speed, high-load conditions.
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$ 59.14
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1-2 weeks delivery time ZF 635501937 is a heavy-duty tapered roller bearing (Ø70 × Ø110 × 40 mm) with dynamic load capacity of 100 kN and static load of 90 kN, built from high-grade chromium steel. Suitable for up to 5500 RPM in oil, it ensures efficient radial and axial load handling in marine gearboxes and industrial machines. Its open design enables optimized lubrication, while corrosion resistance ensures reliability in harsh environments.
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$ 154.48
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1-2 weeks delivery time ZF 635501940 is a tapered roller bearing (Ø90 × Ø160 × 45 mm) for the input shaft of ZF63 marine transmissions. With dynamic and static load ratings of 135 kN and 110 kN respectively, it ensures smooth operation under radial and axial stress. Made from heat-treated bearing steel and corrosion-protected, it supports up to 3800 RPM in oil and 2800 RPM in grease, delivering high durability in saltwater environments.
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$ 158.75
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1-2 weeks delivery time ZF 635501942 is a tapered roller bearing (Ø34.925 × Ø65.088 × 18.034 mm) manufactured by NTN (P/N 0735302485), designed for marine use under high radial and axial loads. With dynamic and static load ratings of 52.1 kN and 64.0 kN respectively, it supports speeds up to 7800 RPM (oil) and features corrosion-resistant steel and an open design for efficient lubrication and cooling.
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$ 98.56
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1-2 weeks delivery time ZF 635501943 is a high-precision tapered roller bearing (Ø26.988 × Ø50.292 × 14.224 mm) engineered for marine transmissions. With a dynamic load rating of 30.8 kN and static load of 36.1 kN, it supports high radial and axial loads. Operating up to 10,000 RPM (oil) or 7,400 RPM (grease), it’s built from heat-treated, corrosion-resistant alloy steel for long-lasting durability in saltwater environments.
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$ 71.16
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1-2 weeks delivery time ZF 636016111 is a high-strength M16 × 60 mm hex head bolt (Grade 10.9) engineered for marine systems. Made from corrosion-resistant alloy steel with protective coating, it delivers 1,000 MPa tensile strength and 900 MPa yield strength, ensuring secure fastening in high-load, high-vibration environments. Fully compliant with ISO 898-1 and DIN 931/933 standards.
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$ 17
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1-2 weeks delivery time ZF 637513037 is a precision-engineered M30 ring nut made from zinc-plated alloy steel for marine gearboxes and propulsion systems. With 60 mm outer diameter and 15 mm thickness, it provides high tensile strength and corrosion resistance in saltwater environments, ensuring stable fastening under heavy loads and vibrations.
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$ 23.63
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1-2 weeks delivery time ZF 3312302042 is a piston sealing ring designed for the ZF63 marine transmission, made from high-performance composite material. It ensures tight fluid sealing under high pressure and temperature ranges (-20°C to 120°C), resists saltwater corrosion, and enables long-term reliability in marine propulsion systems.
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$ 32.67
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1-2 weeks delivery time ZF 3312107001 is a complete transmission cooler kit with a 6" x 2" Bowman core, designed for ZF 63, 63A, 68, and 68A (except IV v-drive). Includes 14" hoses, 1-1/4" tube connectors, bracket, and hardware. Maintains optimal transmission temperature and ensures high-flow cooling in marine systems.
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$ 991.76
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1-2 weeks delivery time ZF 3207116012 is a Centa CFR composite marine damper (SAE 11.5) for ZF 280, 280A, 280IV, and 120/130 series couplings. It reduces torsional vibrations and absorbs shock loads up to 30 bar, withstanding -30°C to +120°C. Rated for 1000 Nm and over 500,000 cycles, it's ideal for demanding marine drivetrain systems.
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$ 1,687.17
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1-2 weeks delivery time ZF 106700 is a hydrodynamic bullet made of polished AISI 316L stainless steel, designed for ZF marine propulsion systems. It weighs 3.25 kg, measures 150 mm × 75 mm, and reduces drag, enhances thrust, and resists corrosion in saltwater. Operates reliably from -30°C to +100°C under mechanical stress.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time ZF 145382 – Groove Nut is a precision-machined stainless steel nut with M64 x 1.5 thread, designed for ZF marine transmissions. With a 96 mm outer diameter, 12 mm height, and torque rating of 180–200 Nm, it offers reliable fastening under vibration and saltwater exposure. Rated to –40°C/+120°C and 500h salt spray resistance, it ensures corrosion-proof performance in harsh conditions.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time ZF 187872 – Outer Slats are marine-grade aluminum hydrodynamic elements for ZF propulsion systems. Measuring 320 × 85 × 15 mm and weighing 2.8 kg, they reduce drag by up to 15% and withstand up to 500 kg of pressure. Featuring an anti-corrosion anodized coating, they operate from –30 °C to +100 °C and install easily via direct bolt-on fitment.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time ZF 206452 – Cover is a corrosion-resistant aluminum alloy protection cap for ZF 630, 850, and 900 marine transmissions. Dimensions: 240×150×40 mm; weight: 2.2 kg. Withstands up to 10 bar pressure and temperatures from –30 °C to +90 °C. Features a high-performance elastomer gasket, UV protection, and direct bolt-on mounting.
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time ZF 206798 – Torsion Spring is a compact, corrosion-resistant spring (Ø55 mm outer, Ø30 mm inner, 120 mm length) with 4 mm wire, designed for ZF marine gearboxes. It delivers 12 N·m spring rate, 600 MPa tensile strength, and endures up to 800 N·m torque under –40 °C to +150 °C, ensuring reliable rotational energy storage and fatigue resistance in harsh marine environments.
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Our managers will contact you and clarify the terms of the order
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In what types of marine vessels are ZF Marine Transmissions commonly found?
ZF 25A transmissions from ZF Marine are commonly used in a variety of marine vehicles, including sailboats, smaller pleasure craft, and some commercial vessels. These transmissions are known for their durability, making them suitable for both recreational and light-duty commercial applications. ZF 25A transmissions are often chosen for their reliability and efficient performance, making them a popular choice among boat owners and operators.
ZF 25A transmissions are designed to meet the diverse needs of marine vessels, with applications ranging from sailboats to smaller pleasure craft and even some commercial boats. These marine transmissions are equipped with advanced features like responsive control systems, ensuring smooth operation and optimized performance across a wide variety of marine environments. Whether it's for luxury yachts, fishing boats, or patrol vessels, ZF transmissions offer reliability, durability, and ease of maintenance, backed by a comprehensive warranty and expert support from authorized dealers like Seaboard Marine. With their innovative driveline technology and commitment to sustainability, ZF transmissions are a trusted choice for boat owners seeking clean and efficient propulsion solutions for their vessels.
What specific benefits do ZF Marine Propulsion Systems offer to boat efficiency operators?
ZF Marine gearboxes offer several specific benefits to boat operators. They are known for their robust construction and reliability, ensuring smooth and efficient power transmission in marine applications. Additionally, ZF Marine provides a range of gearbox spares and repair services, making it easier for operators to maintain and extend the lifespan of their marine transmissions, such as the popular ZF 25A and Hurth marine gearboxes. This comprehensive support contributes to the overall satisfaction and performance of boat operators using ZF Marine products.
ZF Marine gearboxes are designed to meet the diverse needs of boat operators, offering a wide portfolio of transmission options tailored to various vessel types and applications. Whether it's for superyachts, patrol boats, or fishing vessels, ZF transmissions provide intelligent solutions to optimize fuel consumption and horsepower delivery, ensuring clean and sustainable propulsion. With a comprehensive inventory of ZF marine gear series transmissions, operators can easily select the right gearbox to replace or upgrade their existing systems, supported by our expert customer service and maintenance expertise. From aluminum housings to electronic clutch systems, ZF transmissions offer a sophisticated blend of durability, efficiency, and ease of maintenance, making them the preferred choice for boat operators worldwide.
What maintenance and repair considerations are associated with ZF Marine Transmissions?
Maintenance and repair considerations for ZF Marine gearboxes are essential for ensuring their longevity and optimal performance. Regular maintenance, including fluid changes and inspections, is crucial to prevent wear and tear. In case of any issues, boat operators can rely on ZF gearbox spares and repair services to address and rectify problems promptly, whether it's related to the ZF 25A, Hurth marine gearboxes, or other ZF Marine transmissions. These measures help maintain the reliability and efficiency of ZF Marine gearboxes in various marine applications.
ZF transmissions are designed with durability and reliability in mind, but they still require careful attention to maintenance details. Boat operators should maintain a comprehensive list of service points, ensuring that regular checks and oil cooler inspections are performed to prevent overheating and bearing wear. Whether it's for a superyacht with high-performance demands or trolling applications requiring precise control, ZF transmissions offer availability and support through their network of service points and suppliers, ensuring smooth operation even in challenging conditions. Additionally, surface drives equipped with ZF transmissions benefit from the same level of expertise and service, contributing to their longevity and performance on the water.